Gun Breech Braking Mechanism With Rollers for Heat and Wear Control
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Solution Overview
Problem
Existing gun designs suffer from significant heating during repetitive firing, leading to mechanical wear, erosion, and barrel deformation, and require strong slide return springs that make manual cocking difficult.
Innovation Solution
A braking mechanism is introduced that uses brake rollers and spring-loaded pins to dampen breech movement, eliminating the need for a strong slide return spring and reducing heat buildup.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a strong slide return spring is used to dampen breech movement, then the breech is effectively braked, but manual cocking becomes difficult
Solution Approach 1:
The braking function is segmented from the return spring function. Brake rollers are separated from the slide return spring mechanism, with each component performing its dedicated function independently. The brake rollers provide braking through friction contact with the barrel, while the return spring only provides the returning force, eliminating the need for an overly strong spring.
Solution Approach 2:
Brake rollers serve as intermediary elements between the breech and the barrel. These rollers mediate the braking action by contacting the barrel surface and providing friction-based resistance to breech movement, rather than relying solely on a strong return spring.
2Productivity
If repetitive firing is performed, then the gun functions continuously, but significant heating occurs leading to mechanical wear and barrel deformation
Solution Approach 1:
The friction that generates heat during repetitive firing is converted into a beneficial braking force. The brake rollers use friction contact with the barrel to provide controlled resistance to breech movement, transforming the potentially harmful thermal effect into a useful damping function that reduces impact forces and wear.
Solution Approach 2:
The brake rollers provide beforehand cushioning by damping the breech movement before the full impact occurs. This preliminary braking action reduces the intensity of the rearward movement and subsequent forward impact, protecting the barrel and breech components from severe mechanical stress and heat generation during continuous firing.
3Stability of the object's composition
If a strong return spring is used to counteract backlash, then the breech returns to position, but the gun overheats during repetitive firing
Solution Approach 1:
The functions of position stabilization and heat management are segmented. The brake rollers handle the damping and heat generation through controlled friction, while the return spring focuses solely on restoring the breech to its forward position, allowing for a more moderate spring strength that generates less heat.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The mechanism effectively brakes the breech, preventing overheating and mechanical wear, while allowing easy manual cocking of the breech.
Implementation Method 1
A braking mechanism is introduced that uses brake rollers and spring-loaded pins to dampen breech movement
Implementation Method 2
spring-loaded pins to dampen breech movement
Data Source
AI summary
Braking mechanism for a gun includes a fork whose arms are abutted by supporting pins that abut on brake rollers. A breech that has vertical engagement grooves. Spring-loaded pins with compression springs are arranged against supporting pins. The body of the fork is terminated by a tapered tongue extending into a cavity which follows the fork. Behind the tongue a rod is arranged, which passes into the cavity in a sleeve. The sleeve is provided at one end with an end rod, which is provided at its face with a cylindrical ending arranged eccentrically below its center. The supporting pin is provided with a vertical elongated groove to accommodate the safety pin. In front of the trigger a locking lever of the control arm is placed. At the end is the control arm provided with a transverse beam, which is accommodated above the ending of the end rod.